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Zf6 “Transmission failure”auto


Raptor_Z

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Ok fellows I ran the scan on the car and just one error popped up “PO729” INCORRECT GEAR 6 RATIO

 

I drove it on 6th gear with performance mode as well and tried to shift real hard but nothing happened 

Run live diagnostic while driving to check COOLANT TEMP it went to 100c Max but nothing happened 

 

 

do you guyz reckon it’s going into Lymp mode just because of that error? Curious if the coolant temp goes above than 110c and Lymp mode activates again?

any suggestions fellows?

thanks

 

On 21/12/2019 at 11:20 AM, skidxr6t said:

As keith said it sounds electrical. A shop can check the fluid level and condition for peace of mind but if you haven't had your battery checked I would highly recommend it.

 

I had an issue in mine fixed by changing the ignition coils for example (not saying yours are at fault).

Did you get the error code of ignition coils while scanning?

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On 29/12/2019 at 3:14 PM, Raptor_Z said:

Ok fellows I ran the scan on the car and just one error popped up “PO729” INCORRECT GEAR 6 RATIO

How may ks on the box? Gear ratio mismatch can be caused by worn bushes in the 6HP box. Soft bushes were an issue in this box, fixed in later boxes I believe.

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